Seeing as how the 556XI is made to have barrel conversions, but we all know how SiG failed to follow through on that, I'd love to have a 300BO barrel for my 556Xi 7.62 pistol, which is a form 1 SBR.

I have an extra bolt/carrier and lower so that's not a problem ... I just need the dang barrel!

ADCO firearms.....I don't have a link but they do work on sig 55x barrels.

Give Marvin @ Nefarious Arms a call and see what he can do. Does great work !

https://www.facebook.com/Nefar...tts-238142753027664/